—When can I call on you, afternoon or evening?
—________. I’ll be at home all the time.

Either he or I ______to the airport.

（ ）Some students prefer yellow rulers or erasers when they study for exams because yellow is the color of __________.

At first Tim insisted he was right, but then began to ______ .

The machine he originated and perfected has no modern _____ or ancient prototype.

Virginius would feel more or less guilty when he______.

Virginius would feel more or less guilty when he _____.

It is generally considered unwise to give a child___( )_____ he or she wants.

Tim is in good shape physically ______ he doesn’t get much exercise.

When Tim ______ why he was late for school, he just kept silent.

When _____ why he walked in without permission, he just stared at us and saidnothing.

He served the army in ______ when he was in_______.